TB 9-6625-2309-35
(5) Press HOR CONT pushbutton until FOCUS generated pulse is visible on TI
display.
(6) Adjust CURSOR A control to place cursor A at leading edge of FOCUS
(7) Press DISPLAY FROM pushbutton to select A.
(8) Press HOR CONT pushbutton until FOCUS generated pulse leading edge is
visible on TI display. Adjust CURSOR A control to place cursor A at leading edge of
FOCUS generated pulse.
(9) Press HOR EXP pushbutton as necessary to display 2.0 m/div (0.0020 km/div)
on TI.
NOTE
It may be necessary to use different HOR EXP or HOR CONT
and VERT EXP or VERT CONT pushbutton settings to
obtain best waveform for accurate cursor placement.
(10) Press VERT EXP pushbutton as necessary to display 4.0 dB/div on TI.
(11) Adjust CURSOR A control as necessary to position cursor A on FOCUS
GENERATED PULSE LEADING EDGE STARTING POINT (fig. 5).
0 km
4 km
8 km
A
FOCUS GENERATED PULSE AT
LEADING EDGE STARTING POINT
2, 015. 0
2, 023. 0
2, 031. 0
↑ 4. 0 dB / div
2. 0 m / div →
A = 2, 023. 0 m
INDEX: 1. 4990
B = 4, 927. 9 m
λ: 850 SM
PW: 40 ns
A→B = 2, 904. 9 m
# AVG = 4, 096. 0
2-POINT LOSS: 22. 93 dB
Figure 5. Example of
cursor A on
FOCUS generated pulse leading edge starting point (TD-260C).
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